import javafx.scene.input.DataFormat;

import java.awt.*;
import java.io.*;
import java.nio.charset.StandardCharsets;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Date;

public class FileUtil {

  /*  public  static  final  String SEPARATE_FIELD=",";
    public  static  final  String SEPARATE_LINE="\r\n";

    public static void saveBooks(Books books){
        Date date= new Date();
        DateFormat  format= new SimpleDateFormat("yyyymmdd");
        String name = "销售记录"+format.format(date)+".csv";
        InputStream in = null;
        try {
            in = new FileInputStream(name);
            if (in!=null){
                in.close();
                createFile(name,true,books);
            }
        }catch (FileNotFoundException e){
            createFile(name,false,books);
        }catch (IOException e){
            e.printStackTrace();
        }
    }

  /*  public static void createFile(String name ,boolean label,Books books){
        BufferedOutputStream out = null;
        StringBuffer sbf = new StringBuffer();
        try {
            if (label) {
                  out = new BufferedOutputStream(new FileOutputStream(name,true));
            } else {
                     out = new BufferedOutputStream(new FileOutputStream(name,true));
                     String[] fieldSort = new String[]{"图书编号","图书名称","购买数量","单价","总价","出版社"};
                     for (String fieldKye : fieldSort){
                         sbf.append(fieldKye).append(SEPARATE_FIELD);
                     }
            }


            sbf.append(SEPARATE_LINE);
            sbf.append(books.id).append(SEPARATE_FIELD);
            sbf.append(books.name).append(SEPARATE_FIELD);
            sbf.append(books.number).append(SEPARATE_FIELD);
            sbf.append((double) books.price).append(SEPARATE_FIELD);
            sbf.append((double) books.money).append(SEPARATE_FIELD);
            sbf.append(books.publish).append(SEPARATE_FIELD);
            String str = sbf.toString();
            byte[] b = str.getBytes(StandardCharsets.UTF_8);
       }

    }*/
}
